Odén, P C Comparison of gas chromatography-mass spectrometry, radioimmunoassay and bioassay for the quantification of gibberellin A9 in norway spruce (Picea abies (L.) Karst.). [electronic resource] - Planta Jun 1987 - 212-9 p. digital Publication Type: Journal Article ISSN: 0032-0935 Standard No.: 10.1007/BF00391096 doi